These are off of a NOS running board kit 1L24-16451-Baa for a 2002-2005 Ford Exploeer LH running board

2 are the same and interchangeable and the other is different  for a specific position on the car. these may or may not work on the RH side- CONSIDER pics and part #s

this a set of all three brackets for one side ( each of the three are unique to the position that they fit)

EC24